Home / 219,819.18-329,556.50-86,799

Finding the Fourth Proportional to 219,819.18, 329,556.50 and 86,799

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Solution

The fourth proportional to 219,819.18, 329,556.50 and 86,799 is: 130,130.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,819.18 : 329,556.50 = 86,799 : x
  2. Step 2: Convert to fraction form
    219,819.18/329,556.50 = 86,799/x
  3. Step 3: Cross multiply
    219,819.18x = 329,556.50 × 86,799
  4. Step 4: Simplify right side
    219,819.18x = 28,605,174,643.50
  5. Step 5: Solve for x
    x = 28,605,174,643.50/219,819.18
  6. Step 6: Final answer
    x = 130,130.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.